What would be the time out value for the AbInitio process?

You can increase time-out values with the AbInitio environment variables AB_STARTUP_TIMEOUT and AB_RTEL_TIMEOUT_SECONDS. 

There are two Ab Initio environment variables that control time-out values. Increasing these values may help if a job fails with a connection time-out message, although there may some problem causing the time-out, such as a machine down or an incorrect name used, and increasing the time-out interval will not help.

AB_STARTUP_TIMEOUT specifies the number of seconds before timing out when starting processes on a processing node.

To start a job on a processing node, the Co>Operating System uses rsh, rexec, rlogin, telnet, ssh, or dcom. In most cases, these succeed or fail within a few seconds. However, if the processing node is heavily loaded, startup may take significantly longer. Increasing the time-out value gives the processing node more time to respond.

AB_RTEL_TIMEOUT_SECONDS controls how long to wait for the remote rlogin or telnet server to respond.